1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4 2; RUN: llc < %s -mtriple=x86_64 -mattr=avx512bw | FileCheck %s 3 4; Verify that the DAGCombiner doesn't change build_vector to concat_vectors if 5; the vector element type is different than splat type. The example here: 6; v8i1 = build_vector (i8 (bitcast (v8i1 X))), ..., (i8 (bitcast (v8i1 X)))) 7 8define <8 x i1> @foo(<8 x i1> %mask.i1) { 9; CHECK-LABEL: foo: 10; CHECK: # %bb.0: # %entry 11; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0 12; CHECK-NEXT: retq 13entry: 14 %0 = and <8 x i1> %mask.i1, <i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false> 15 %1 = bitcast <8 x i1> %0 to i8 16 %2 = icmp ne i8 %1, 0 17 %insert54 = insertelement <8 x i1> zeroinitializer, i1 %2, i64 0 18 %splat55 = shufflevector <8 x i1> %insert54, <8 x i1> zeroinitializer, <8 x i32> zeroinitializer 19 %3 = and <8 x i1> %0, %splat55 20 br label %end 21 22end: ; preds = %entry 23 %4 = select <8 x i1> %3, <8 x i1> zeroinitializer, <8 x i1> zeroinitializer 24 ret <8 x i1> %4 25} 26